1. You will have to list something to compare it to.
2. The RG-14 is a .22 LR caliber, six shot blued revolver with an alloy frame, plastic grips, made in various barrel lengths, mostly 17/8 inch and 3 inches.
It was manufactured by Rhom, and assembled in Germany.
It was imported by FIE for a time.
The revolver is small, cheap at 50-100 USD, and works. In 1980 the MSRP was 66 US dollars. The double action trigger pull is heavy.
As a side note, John Hinckley Jr used an RG 14 revolver with a 3 inch barrel to shoot President Reagan, Jim Brady and others in an assassination attempt in 1981.
While no one was killed, it is amazing that everyone fell down (they were not aggressors) , even though the .22 LR "devastator" cartridges used did not explode except in the case of Brady.
25 USD
If the revolver is an RG or Rohm, it is worth about $25-50. These were low cost, low quality firearms, and frequenly had frames made of metals other than steel.
15-45 USD
5-50 USD or so
Not really worth the time or money. If you have to have it done, let a gunsmith do it.
No published sn data that I am aware of. Best guess is 60-68
No published sn data. 25-50 or so
RG model RG31 Caliber 32 long manufactured by RG industries, Miami Florida
See the link below. This will take you to the schematic for an RG 14 at the Numrich gun parts corp website.
20-60
No sn data available
FRG